Finding the Fourth Proportional to 12,268.53, 18,405.73 and 3,949.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,268.53 : 18,405.73 = 3,949.32 : x
2. Step 2: Convert to fraction form
   12,268.53/18,405.73 = 3,949.32/x
3. Step 3: Cross multiply
   12,268.53x = 18,405.73 × 3,949.32
4. Step 4: Simplify right side
   12,268.53x = 72,690,191.56
5. Step 5: Solve for x
   x = 72,690,191.56/12,268.53
6. Step 6: Final answer
   x = 5,924.93